Green Synthesis of Hierarchically Porous Carbon Nanotubes as Advanced Materials for High-Efficient Energy Storage

Jian-Gan Wang; Hongzhen Liu; Xingyuan Zhang; Xu Li; Xingrui Liu; Feiyu Kang

doi:10.1002/smll.201703950

Green Synthesis of Hierarchically Porous Carbon Nanotubes as Advanced Materials for High-Efficient Energy Storage

Small. 2018 Mar;14(13):e1703950. doi: 10.1002/smll.201703950. Epub 2018 Feb 5.

Authors

Jian-Gan Wang¹, Hongzhen Liu¹, Xingyuan Zhang¹, Xu Li², Xingrui Liu¹, Feiyu Kang²

Affiliations

¹ State Key Laboratory of Solidification Processing, Center for Nano Energy Materials, School of Materials Science and Engineering, Northwestern Polytechnical University and Shaanxi Joint Lab of Graphene (NPU), Xi'an, 710072, China.
² Engineering Laboratory for Functionalized Carbon Materials and Shenzhen Key Laboratory for Graphene-based Materials, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China.

PMID: 29399958
DOI: 10.1002/smll.201703950

Abstract

Hierarchically porous carbon nanomaterials with well-defined architecture can afford a promising platform for effectively addressing energy and environmental concerns. Herein, a totally green and straightforward synthesis strategy for the fabrication of hierarchically porous carbon nanotubes (HPCNTs) by a simple carbonization treatment without any assistance of soft/hard templates and activation procedures is demonstrated. A high specific surface area of 1419 m² g^-1 and hierarchical micro-/meso-/macroporosity can be achieved for the HPCNTs. The unique porous architecture enables the HPCNTs serving as excellent electrode/host materials for high-performance supercapacitors and Li-sulfur batteries. The design strategy may pave a new avenue for the rational synthesis of hierarchically porous carbon nanostructures for high-efficient energy storage applications.

Keywords: Li-S batteries; green synthesis; high performance; porous carbon nanotubes; supercapacitors.

Publication types

Research Support, Non-U.S. Gov't